package servlet;

import com.jspsmart.upload.File;
import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspFactory;
import javax.servlet.jsp.PageContext;
import java.io.IOException;

@WebServlet(urlPatterns = "/upload")
public class UploadServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //创建文件对象
        try {
            SmartUpload smartUpload = new SmartUpload();
            //初始化
            //获取PageConText
            PageContext pageContext = JspFactory.getDefaultFactory().getPageContext(this, req, resp, null, false, 1024, true);
            smartUpload.initialize(pageContext);
            //设置编码
            smartUpload.setCharset("utf-8");
            //上传
            smartUpload.upload();
            //得到文件信息
            File file = smartUpload.getFiles().getFile(0);
            String fileName = file.getFileName();
            String contentType = file.getContentType();
            String path = "/uploadfiles/"+fileName;
            req.setAttribute("fileName",fileName);
            String info = smartUpload.getRequest().getParameter("info");
            System.out.println(info);
            req.setAttribute("info",info);
            //保存文件到服务器
            file.saveAs(path,smartUpload.SAVE_VIRTUAL);

            //跳转页面
            req.getRequestDispatcher("success.jsp").forward(req,resp);
        } catch (SmartUploadException e) {
            e.printStackTrace();
        }
    }
}
